William j



(No Model.) W. J. WALKER.

WRENCH.

No. 470.626. vPatented Mar. s, 1892.

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VILLIAM J. WALKER, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO THEODORE H. VURMB, OF SAME PLACE.

WRENCH.

SPECIFICATION forming'part of Letters Patent o. 470,626, dated'March 8, 1892.

Application filed April 16, 18913 Serial No. 389,200. (No model.)

To all whom, t may concern,.-

Be it known that I, WILLIAM J. WALKER, of the cityof St. Lonis,State of Missouri, have invented certain new and useful Improvements in Wrenches, of which the following is a full, clear, and vexact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in wrenches; and it consists in the novel ar-` rangement and combination of'parts, as will be more fully hereinafter described, and designated in the claim. In the drawings, Figure 1 is a perspectiv View of my complete invention; and Fig. 2 is a longitudinal section of the same, showing the spring for engaging the handle Witht'he movable jaw. y i

Referring to the drawings, 1 .indicates a stationary jaw, and 2 a handle secured to the same or cast integrally therewith in any suitable and mechanical manner. Said handle is provided with a series of teeth 3, preferably of the construction as shown in Figs. l and 2. 4 indicates a movable jaw, the same being provided with a transverse perforation 5 and parallel inclined portions 6, and also with a projection 7, which is adapted to engage teeth 3 of the handle.

to permit the movable jaw-4 to be tilted or moved forward for disengaging the projection 7 with teeth 3. f

8 indicates a spiral spring carried by jaw 4, on which is mounted a lug 9, which bears against the handle 2 for engaging projection 7 with the ratchet-teeth 3.

The inclined portions 6 arey Whenever the Wrench is applied to a nut or any object, the resistance of the same, which acts on the movable jaw 4, will cause said jaw, or rather the projection-7 of'the same, 4o to engage with teeth 3 and thereby lock said jaw. Of course to effect the disengagement with said projection and teeth it is only necessary to tilt or move the movable jaw a little forward.

In place of using a spring 8, as hereinbefore described, I may use a fiat spring 9', as shown in Fig. 1, or I may dispense with both springs Without Inateriallyaecting the functional operation of the Wrench. 5o

l0 indicates a pin or lug for preventing the movable jaw 4 from slipping oft of handle 2.

Having fully described my invention, what I claim is In` a Wrench, the combination of a handle 2, having teeth 3 on one side thereof, a IiXed head 1, secured to one end of the said handle, a jaw 4, provided with a transverse perforation 5, through which the said handle passes, and with parallel inclined recesses 6, one at either end and on opposite sides of the said perforation and communicating therewith, a spring located in an aperture in the base of one ofthe recesses 6, and a lug carried thereby and bearing against the said handle, substantially as described.

In testimony Wqhereof I affix my signature in presence of two witnesses.

WILLIAM J. IVALKER.

Witnesses:

EDWARD E. LoNGAN, C. F. KELLER. 

